Philips Efficia DFM100 - Display Problems; Audio Problems

3: Troubleshooting Components Troubleshooting
72
Display Problems
Run the Display Test (see “Display Test” on page 162) to inspect the screen for defective pixels, random
lines or dots, visible permanent patterns, or flickering.
Audio Problems
Table 26 Display Problems
Symptom Possible Cause Suggested Solution
Display is all dark, no response to controls.
Turn the Therapy Knob to Monitor or
Therapy, press the Sync button. Does it light
up?
Yes: Failure of backlight
Display failure
• Replace Display Assembly
• Replace Processor PCA
No: Device does not turn on Troubleshoot the device
Display is all light, no response to controls. • SOM PCA failure
• Processor PCA failure
• Display failure
• Replace SOM PCA
• Replace Processor PCA
• Replace Display Assembly
Display unusually dim. Display failure • Replace Display Assembly
• Replace Processor PCA
Display Test failure in Service Mode (other
than the symptoms above)
• Display failure
• SOM PCA failure
• Processor PCA failure
• Replace Display Assembly
• Replace SOM PCA
• Replace Processor PCA
Table 27 Audio Problems
Symptom Possible Cause Suggested Solution
No audio at all Speaker failure • Check speaker connections
• Replace Speaker Assembly
UI PCA failure Replace UI PCA
Processor PCA failure Replace Processor PCA
Audio is distorted • Audio is too loud
• Speaker damage or failure
•UI PCA failure
• Processor PCA failure
• Reduce the volume
• Replace Speaker Assembly
• Replace UI PCA
• Replace Processor PCA
Buzzing noise when audio active • Speaker hardware loose
• Speaker failure
•UI PCA failure
• Processor PCA failure
• Tighten hardware as needed
• Replace Speaker Assembly
• Replace UI PCA
• Replace Processor PCA
Tones present but no voice prompt (in AED
Mode)
Software error or failed
localization upgrade
Reload the language
SOM PCA failure Replace SOM PCA
 message Audio failure during Op Check • Repeat the Op Check. Make sure to
acknowledge the audio prompt
• Replace Speaker Assembly
 error log message Test is not completed in time Run Op Check